This film is so heartbreaking....I also have a younger sister and I understand that Seita will do everything to make her sister happy even if he has nothing. It's hard and pitiful because their country has no fight compared to America that time and it must be so hard to Seita and Setsuko that their parents aren't by their side that time:(. All I can say is that Seita is very brave at his age, even though many oppressed him, he doesn't care because he knows that his sister really needs him. I'm impressed with Seita's courage even though I'm not as brave as him, the only thing I'm sure of is that I also love my younger sister very much.